Textový súbor musí obsahovať údaje v tvare: čas, vstup do systému, výstup zo systému.
Príklad súboru:
0.0000000e+000 1.0000000e+000 0.0000000e+000
2.8556843e-018 1.0000000e+000 0.0000000e+000
2.0095091e-004 1.0000000e+000 0.0000000e+000
1.2057055e-003 1.0000000e+000 0.0000000e+000
6.2294784e-003 1.0000000e+000 0.0000000e+000
3.1348343e-002 1.0000000e+000 0.0000000e+000
1.5694266e-001 1.0000000e+000 0.0000000e+000
6.5694266e-001 1.0000000e+000 0.0000000e+000
1.1569427e+000 1.0000000e+000 0.0000000e+000
1.6569427e+000 1.0000000e+000 0.0000000e+000
2.1569427e+000 1.0000000e+000 0.0000000e+000
2.6569427e+000 1.0000000e+000 3.1960539e-001
3.1569427e+000 1.0000000e+000 7.0654461e-001
3.6569427e+000 1.0000000e+000 1.0178817e+000
4.1569427e+000 1.0000000e+000 1.2683883e+000
4.6569427e+000 1.0000000e+000 1.4699497e+000
5.1569427e+000 1.0000000e+000 1.6321290e+000
... ... ...